On Jan 9, 2007, at 4:47 PM, Michael Niedermayer wrote: > Hi > > On Tue, Jan 09, 2007 at 04:03:21PM -0600, Ryan Martell wrote: > [...] >> For the record, the timing units I sent before were only timing the >> generate_untempered function, since it's only called every >> AV_RANDOM_N times av_random is called. >> >> Final question: typically, I use time(NULL) to initialize the seeds >> of a random number generator. Since ffmpeg says don't use time >> (NULL), what's the best pseodo-random seed generator to use? > > 0 should do Not really; then it won't be even random- the GUID of everyone (in asf.c for my mms stuff, that started this all), will always be the same for every user out there. The seed must be initialized with something that's at least pseudo random. > and the code looks ok (except the missing Makefile patch) > > [...] Makefile patch and code (unchanged from before, just all in one place). -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: random_makefile.txt URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20070109/e9dca37a/attachment.txt> -------------- next part -------------- A non-text attachment was scrubbed... Name: random.c Type: application/octet-stream Size: 3516 bytes Desc: not available URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20070109/e9dca37a/attachment.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: random.h Type: application/octet-stream Size: 2408 bytes Desc: not available URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20070109/e9dca37a/attachment-0001.obj>
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